CN111347993A - 一种行车安全辅助系统及侦测方法 - Google Patents

一种行车安全辅助系统及侦测方法 Download PDF

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CN111347993A
CN111347993A CN201811570122.9A CN201811570122A CN111347993A CN 111347993 A CN111347993 A CN 111347993A CN 201811570122 A CN201811570122 A CN 201811570122A CN 111347993 A CN111347993 A CN 111347993A
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seat
detector
control unit
air bag
automobile
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郑家杰
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Fu Ding Precision Components Shenzhen Co Ltd
Hongteng Precision Technology Co Ltd
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Fu Ding Precision Components Shenzhen Co Ltd
Hongteng Precision Technology Co Ltd
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Priority to TW108146013A priority patent/TW202031534A/zh
Priority to US16/726,164 priority patent/US20200207299A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01554Seat position sensors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512Passenger detection systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512Passenger detection systems
    • B60R21/01516Passenger detection systems using force or pressure sensing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204Actuation parameters of safety arrangents
    • B60R2021/01211Expansion of air bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01286Electronic control units

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Abstract

一种行车安全辅助系统,适用于具有自动驾驶功能的汽车,所述行车安全辅助系统包括微控制单元、车门开关侦测器、座椅侦测器、碰撞侦测器、气囊控制器及安全气囊;所述各侦测器通过电路与微控制单元相连,所述安全气囊通过气囊控制器与所述微控制单元相连,所述气囊控制器的输入端与微控制单元相连,所述座椅侦测器包括若干角度传感器,分别用于检测座椅的朝向以及椅背的调整角度。所述系统根据座位状况信息实时对安全气囊进行调整,提升自驾汽车的乘坐安全性。

Description

一种行车安全辅助系统及侦测方法
【技术领域】
本发明有关一种行车安全辅助系统及侦测方法。
【背景技术】
中国实用新型专利公告第CN202294651号揭示了一种汽车安全气囊的自动释放装置。所述安全气囊的自动释放装置包括汽车安全气囊、微控制器、安装在车内的倾斜角度传感器、倾斜角度传感信号预处理电路、车身垂直方向安装的加速度传感器、紧急人工启动单元、紧急人工取消单元、安全气囊控制释放继电器和电源单元。所述倾斜角度传感器通过倾斜角度传感信号预处理电路与微控制器相连,加速度传感器、紧急人工启动单元及紧急人工取消单元均连接在微控制器上,微控制器还通过安全气囊控制释放继电器与汽车安全气囊相连接。该装置能够实现汽车在倾斜侧翻,坠落山下或者桥下时,及时释放安全气囊,保障车内人员的人生安全。但是所述自动释放装置不能实时对安全气囊进行有效调整。
所以,有必要设计一种新的行车安全辅助系统,以改善上述缺陷。
【发明内容】
本发明所要解决的技术方案在于,提供一种行车安全辅助系统及侦测方法,提升自驾汽车的乘坐安全性。
本发明可通过以下技术方案来实现:一种行车安全辅助系统,适用于具有自动驾驶功能的汽车,所述行车安全辅助系统包括微控制单元、车门开关侦测器、座椅侦测器、碰撞侦测器、气囊控制器及安全气囊;所述各侦测器通过电路与微控制单元相连,所述安全气囊通过气囊控制器与所述微控制单元相连,所述气囊控制器的输入端与微控制单元相连,所述座椅侦测器包括若干角度传感器,分别用于检测座椅的朝向以及椅背的调整角度。
本发明还可以通过另一技术方案来实现:一种行车安全辅助系统的侦测方法,适用于具有自动驾驶功能的汽车,所述汽车内设有微控制单元、车门开关侦测器、座椅侦测器、碰撞侦测器、气囊控制器及安全气囊;所述侦测方法包括以下步骤:
步骤一:启动汽车,所述微控制单元开始工作,所述车门开关侦测器检测车门是否关闭;
步骤二:所述微控制单元接受到车门关闭的信号并传送至所述座椅侦测器,所述座椅侦测器开始检测座位状况信息,包括乘客的座位、座椅的朝向及椅背的调整角度,并将所述座位状况信息反馈给微控制单元;
步骤三:所述微控制单元汇整并分析所述座位状况信息,形成对安全气囊的作用信息,所述气囊控制器根据所述作用信息对安全气囊做相应调整;
步骤四:一旦微控制单元接受到所述碰撞侦测器输出的碰撞信号,立即做出释放安全气囊的指令,安全气囊会按照气囊控制器的调整进行作用。
与现有技术相比,本发明具有如下有益效果:所述行车安全辅助系统及侦测方法根据座位状况信息实时对安全气囊进行调整,提升自驾汽车的乘坐安全性。
【附图说明】
图1是本发明行车安全辅助系统的技术结构图;及
图2是本发明行车安全辅助系统侦测方法的流程图。
如下具体实施方式将结合上述附图进一步说明本发明。
【具体实施方式】
请参阅图1,本发明提供了一种行车安全辅助系统,适用于具有自动驾驶功能的汽车。具有自动驾驶功能的汽车,乘员不再担负驾驶责任,所以乘客不需要坐在具有方向盘的驾驶座,也不需要面向汽车行进的方向观看路况,而是任意坐在一个位置,且可以面朝任何方向。本发明就是要通过一系列的传感器和相对应的处理电路及时收集并分析乘客的座位状况信息,有针对性的调整安全气囊,使安全气囊发挥更好的保护作用。
所述汽车包括可前后方向旋转的前排座椅、后排座椅、椅垫及中央扶手,所述前排座椅可转至面朝所述后排座椅,所述前后排座椅椅垫处及中央扶手处均增设了安全气囊。所述行车安全辅助系统包括微控制单元(MCU)、车门开关侦测器、座椅侦测器、碰撞侦测器、气囊控制器及安全气囊。所述各侦测器通过电路与微控制单元相连,所述安全气囊通过气囊控制器与所述微控制单元相连,所述气囊控制器的输入端与微控制单元相连,所述座椅侦测器包括若干角度传感器,分别用于检测座椅的朝向以及椅背的调整角度。
所述每个座椅均安装了座椅侦测器,所述座椅侦测器包括座椅乘坐侦测器、座椅角度侦测器及座椅旋转侦测器。本实施例中,座椅乘坐侦测器通过压力传感器感知座位是否有乘客,压力传感器通常内置有压力敏感元件及信号处理单元,可以将压力信号转换为电信号。压力传感器还连有信号处理电路,将输出的电信号转换为所需的数字信号,反馈给微控制单元。所述座椅角度侦测器通过角度传感器检测椅背倾斜的角度,椅背的倾斜角度值与参考位置有关,选定参考位置通过微控制单元编辑最适合的初始值,微控制单元在接受到角度传感器的角度信号值时,通过内置算法判断倾斜的角度值。所述座椅旋转侦测器同样通过角度传感器检测座椅旋转的角度即乘客的朝向信息。所述乘客的座位、椅背的调整角度及座椅的朝向共同构成座位的状况信息。
根据所述座椅侦测器输入的的座位状况信息,所述微控制单元及时汇整并分析所述座位状况信息,判断哪些安全气囊需要释放,值得注意的是,本发明于座垫处增设了多个安全气囊。本实施例中,假设乘客位于汽车前排左方的座椅处,但是座椅调至面朝后方,微控制单元便会判断汽车左前座椅前气囊不作用,因为释放会打到左前座的椅背,而选择释放左后座椅座垫处的安全气囊,改变了普通汽车单一的气囊释放系统,提高了乘坐的安全性。所述微控制单元接受并分析所述所有侦测器及气囊控制器的信息及信号,从而控制所述侦测器及气囊控制器进行分工合作。
所述安全气囊与气囊控制器相连,并受气囊控制器直接控制,气囊控制器可以设置安全气囊的充气量、作用范围、作用角度及作用顺序。在发生巨大撞击的瞬间,安全气囊依据气囊控制器的设置进行充气和作用。碰撞侦测器设于车身多处,用于全面检测碰撞信息,当某处碰撞强度高于预设强度时便会输出碰撞信号。
请参阅图2,本发明还包括一种行车安全辅助系统的侦测方法,适用于具有自动驾驶功能的汽车,所述汽车内设有微控制单元、车门开关侦测器、座椅侦测器、碰撞侦测器、气囊控制器及安全气囊;所述侦测方法包括以下步骤:
步骤一:启动汽车,所述微控制单元开始工作,所述车门开关侦测器检测车门是否关闭;
步骤二:所述微控制单元接受到车门关闭的信号并传送至所述座椅侦测器,所述座椅侦测器开始检测座位状况信息,包括乘客的座位、座椅的朝向及椅背的调整角度,并将所述座位状况信息反馈给微控制单元;
步骤三:所述微控制单元汇整并分析所述座位状况信息,形成对安全气囊的作用信息,所述气囊控制器根据所述作用信息对安全气囊做相应调整;
步骤四:一旦微控制单元接受到所述碰撞侦测器输出的碰撞信号,立即做出释放安全气囊的指令,安全气囊会按照气囊控制器的调整进行作用。
当所述步骤二中座椅侦测器及时更新了座位状况信息时,所述步骤三及步骤四的动作依次更新。所述作用信息包括安全气囊的开启与关闭、充气量、作用范围、作用角度及作用顺序。
以上所述仅为本发明的一种实施方式,本发明并不受上述实施方式的限制,本领域普通技术人员通过阅读本发明说明书而对本发明技术方案采取的任何等效的变化,均为本发明的权利要求所涵盖。

Claims (8)

1.一种行车安全辅助系统,适用于具有自动驾驶功能的汽车,所述行车安全辅助系统包括微控制单元、车门开关侦测器、座椅侦测器、碰撞侦测器、气囊控制器及安全气囊;其特征在于:所述各侦测器通过电路与微控制单元相连,所述安全气囊通过气囊控制器与所述微控制单元相连,所述气囊控制器的输入端与微控制单元相连,所述座椅侦测器包括若干角度传感器,分别用于检测座椅的朝向以及椅背的调整角度。
2.如权利要求1所述的行车安全辅助系统,其特征在于:所述汽车包括可前后方向旋转的前排座椅、后排座椅、椅垫及中央扶手,所述前排座椅可转至面朝所述后排座椅,所述前后排座椅两侧、椅垫处及中央扶手处均增设了所述安全气囊。
3.如权利要求2所述的行车安全辅助系统,其特征在于:所述座椅侦测器还包括压力传感器,用于检测乘客的座位。
4.如权利要求3所述的行车安全辅助系统,其特征在于:根据所述座椅侦测器检测到的座位状况信息,所述微控制单元及时汇整并分析所述座位状况信息。
5.如权利要求4所述的行车安全辅助系统,其特征在于:所述微控制单元接受并分析所述所有侦测器及气囊控制器的信息,从而控制所述侦测器及气囊控制器进行分工合作。
6.一种行车安全辅助系统的侦测方法,适用于具有自动驾驶功能的汽车,所述汽车内设有微控制单元、车门开关侦测器、座椅侦测器、碰撞侦测器、气囊控制器及安全气囊;其特征在于:所述侦测方法包括以下步骤:
步骤一:启动汽车,所述微控制单元开始工作,所述车门开关侦测器检测车门是否关闭;
步骤二:所述微控制单元接受到车门关闭的信号并传送至所述座椅侦测器,所述座椅侦测器开始检测座位状况信息,包括乘客的座位、座椅的朝向及椅背的调整角度,并将所述座位状况信息反馈给微控制单元;
步骤三:所述微控制单元汇整并分析所述座位状况信息,形成对安全气囊的作用信息,所述气囊控制器根据所述作用信息对安全气囊做相应调整;
步骤四:一旦微控制单元接受到所述碰撞侦测器输出的碰撞信号,立即做出释放安全气囊的指令,安全气囊会按照气囊控制器的调整进行作用。
7.如权利要求6所述的行车安全辅助系统的侦测方法,其特征在于:所述步骤二中座椅侦测器及时更新了座位状况信息时,所述步骤三及步骤四的动作依次更新。
8.如权利要求6所述的行车安全辅助系统的侦测方法,其特征在于:所述作用信息包括安全气囊的开启与关闭、充气量、作用范围、作用角度及作用顺序。
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